Kayak



FIG. 1 is a top pictorial view of a kayak showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation of one side of the kayak of FIG. 1, with the opposite side being a mirror image thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof; and,

FIG. 6 is a rear elevation view thereof. 

The ornamental design for a kayak, substantially as shown and described. 